CN103633887A - Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter - Google Patents
Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter Download PDFInfo
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- CN103633887A CN103633887A CN201210307466.7A CN201210307466A CN103633887A CN 103633887 A CN103633887 A CN 103633887A CN 201210307466 A CN201210307466 A CN 201210307466A CN 103633887 A CN103633887 A CN 103633887A
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Abstract
The invention discloses a leakage flux reduction method of a frequency response starter of a wound-rotor motor and a frequency response starter. According to the main technical scheme, a material with low carbon content is used; and a fan-shaped iron core is formed by processing and is used for replacing the original circular iron core. Because the included angle between two windings of the fan-shaped iron core is reduced, the leakage flux area is correspondingly reduced. Therefore, when the motor is operated, the leakage flux loss is reduced and the active component of the motor rotor is increased. Because a resistance wire is used to replace a glass silk-coated flat type copper wire to manufacture a coil, the nonferrous metal is saved and the resistance value is increased, so that the size and the weight of the starter are reduced, the eddy current loss is reduced, and the electric energy is effectively saved. Moreover, according to the load type and the voltage situation of the motor drive, when internal wiring of the starter is carried out, a star-shaped method and an angle-shaped method are used to increase the starting torque and the power factor of the motor rotor and stabilize the end voltage.
Description
Technical field
The present invention relates to a kind of wound rotor motor and frequently feel starter reduction leakage field method, the invention still further relates to a kind of wound rotor motor and frequently feel starter, belong to motor and frequently feel starter technical field.
Background technology
Starter without brush and ring is since putting on market, because it is to be directly installed on motor rotor to do synchronous operation with rotor.Saved the frequency sensitive trheostat in copper slip ring, carbon brush, brush box, support, compression spring and the control cubicle of installing on former rotor, more than 10 quick-wear part such as the time relay, once mounting, long-term use, reduce maintenance time and number of times, save spare part expense, improved device security running rate.
In the patent that be 98224515.7 at the application number of Chinese patent literature Granted publication on the 6th October in 1999, name is called < < wound rotor motor starter without brush and ring > >, disclose a kind of starter of wound-rotor asynchronous motor, the feature of this starter is to be designed with an axle sleeve and motor rotor to fix and be connected and do synchronous operation.On axle sleeve, be fixed with circular forward and backward yoke plate, 6 coil windings are arranged on forward and backward yoke plate, by 6 interior iron cores and small front apron, fix and connect into a toroidal integral body, 12 of 6 coil windings lift one's head line and have done to be fixedly connected with in inside, only leave 6 binding posts outside, object be with on motor rotor 6 lift one's head line and be used as in parallel.After being connected with rotor, the starter of this structure participates in rotor synchronous operation, during motor starting, starter, except restriction starting current, can also increase starting torque, keep the original performance of motor constant, and can Fraquent start and motor forward/backward rotation all unaffected.But also there is obvious defect in this wound rotor motor starter without brush and ring, first be that what to adopt due to this starter is circular iron core, angle α between adjacent two windings is larger, causes leakage field area larger, increases dispersion loss (as shown in Figure 1); Secondly, because conventional core material phosphorus content is high, be used for coiling, can cause larger eddy current loss, increase caloric value, security and stability is poor, and electric energy loss is large, and magnetic resistance is little, and power factor is low; Due to the glass fiber bag flat type copper wire normally of the coil on iron core, because coil weight is large, the starter volume of same power is large, electric energy loss is large, operating cost is high, if adopt resistance wire to replace copper cash to make winding, cannot solve again the key issue of interlayer heatproof insulating material.
Therefore, the type of the prior art feels that starter exists that dispersion loss is large, operating cost is high, power factor is low and the problem such as security and stability is poor frequently, or undesirable.
Summary of the invention
The technical problem underlying that the present invention need to solve is that the type wound rotor motor of prior art is felt the problem that starter dispersion loss is large frequently.
It is large that the less important technical problem that the present invention need to solve is that the type wound rotor motor of prior art is felt starter volume weight frequently, and power consumption is high, and operating cost is high, the problem that security and stability and effect are low.
In order to solve the problems of the technologies described above, a kind of wound rotor motor that the present invention adopts is frequently felt starter and is reduced leakage field method, wherein, the circular iron core that the compressing segmental core of DT4 tube material that described method employing phosphorus content is extremely low replaces the coil windings of the frequency sense starter of prior art to adopt, dwindle the angle α between adjacent winding, reduce leakage field area, thereby reduce dispersion loss.Compare with original technical scheme, adopt after segmental core, the space between coil windings is tightr, and leakage field area significantly reduces, so dispersion loss has reduced during starter operation.
For realizing said method, the present invention also provides a kind of wound rotor motor frequently to feel starter, comprise and the direct-connected axle sleeve of motor rotary shaft, axle sleeve two ends are fixed with circular front yoke plate and rear yoke plate, before, between rear yoke plate, be fixed with 6 coil windings, coil windings is comprised of coil and iron core, by stay-bolt through the connection that fixes of the hole in the middle of iron core, wherein, what the iron core of described coil windings adopted is the compressing segmental core of DT4 tube material, the coil of coil windings is wound in segmental core by specification requirement, and use without the colligation of latitude band parcel, 6 coil windings are provided with the connection that fixes in inside of 12 terminals, and starter is provided with 6 binding posts for connecting motor terminal.With DT4 tube material, be processed into segmental core and substitute original circular iron core, dwindle the angle between winding, reduce leakage field area, greatly reduce the dispersion loss of feeling starter frequently.Because DT4 material phosphorus content is low, with it, carry out coiling, reduce eddy current loss, reduce caloric value, increase magnetic resistance, saves energy, reduces temperature rise, increasing motor rotor power factor and starting torque.
Further, described coil windings adopt resistance wire substitute copper cash as coil winding in segmental core.With resistance wire, replace glass fiber bag flat type copper wire in segmental core, the motor of same power, the weight of resistance wire is 1/3rd of weight of copper wire, and the impedance producing is greater than the impedance that copper cash produces, and makes the volume-diminished of whole product, weight saving, save non-ferrous metal, can also increase impedance, the increasing motor rotor deal of gaining merit, improve power factor, improved the starting performance of motor.
With resistance wire, substitute copper cash and make winding, the problem of most critical is, how to solve heatproof insulating material, and therefore, in the present invention, described coil windings is made layer insulation with heatproof asbestos board, has so just solved this problem.
In addition, described 6 coil windings are provided with when 12 terminals are inner to be connected and adopt star connection, also can adopt dihedral connection.The inner two kinds of modes of connection of starter, applied range, can reduce the loss of terminal voltage, makes the starting smoothly in the situation that being less than rated voltage 20% of electronic function.
Owing to having adopted technical scheme of the present invention, the leakage field area that wound rotor motor of the present invention is felt starter frequently significantly reduces, dispersion loss during operation significantly reduces, simultaneously, wound rotor motor of the present invention is frequently felt starter and is also had little, the lightweight advantage of volume, can effectively save electric energy, reduces operating cost, can also reduce caloric value, improve security and stability; Meanwhile, can also increasing motor rotor power factor and starting torque, can improve the effect of starter.Technical scheme of the present invention can also be applicable to, in other similar devices, to have market prospects widely, is worthy to be popularized.
accompanying drawing explanation
Fig. 1 is circular coil winding layout plan of the prior art;
Fig. 2 is sector (-shaped) coil winding layout plan of the present invention;
Fig. 3 is that wound rotor motor is felt starter structural representation frequently;
Fig. 4 is Fig. 3 coil winding drawing;
Fig. 5 is coil windings Y-connection schematic diagram;
Fig. 6 is coil windings Angle connection schematic diagram.
Description of reference numerals: 1-axle sleeve, 2-segmental core, 3-hex nut, 4-stay-bolt, yoke plate after 5-, 6-insulating pad, 7-heatproof asbestos board, 8-layer insulation plate, 9-resistance wire, 10-outer layer insulation plate, 11-is without latitude band, yoke plate before 12-, 13-packing ring, 14-insulated ring, 15-binding post, 16-coil windings.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
First see Fig. 1 and Fig. 2, wherein Fig. 1 is circular coil winding layout plan of the prior art, Fig. 2 is sector (-shaped) coil winding layout plan of the present invention, from two figure, can see, no matter be prior art, or wound rotor motor of the present invention is felt starter frequently, main structure is at front yoke plate 12, between rear yoke plate 5, be provided with 6 coil windings 16, but what the coil windings 16 of prior art adopted is circular iron core, and coil windings 16 employings of the present invention is segmental core 2, from Fig. 1, with in the contrast of Fig. 2, can see, due to compared to existing technology, angle α between adjacent iron core of the present invention is less, space between adjacent segmental core 2 is tightr, space is less, therefore the leakage field area that wound rotor motor of the present invention is felt starter frequently can significantly reduce, thereby reduced wound rotor motor and frequently felt the dispersion loss that starter is in operation, to realize object of the present invention.In addition, coil windings 16 is by carrying out colligation without latitude band 11.
The segmental core 2 that frequency sense starter of the present invention adopts is to be processed by DT4 tube material, because DT4 material phosphorus content is low, with it, carry out coiling, can reduce eddy current loss, reduce caloric value, increase magnetic resistance, saves energy, reduce temperature rise, increasing motor rotor power factor and starting torque.
See Fig. 3, wound rotor motor of the present invention is felt starter frequently, comprise and the direct-connected axle sleeve 1 of motor rotary shaft, the axle sleeve 1 of the present embodiment is arranged on the rotor of motor, axle sleeve 1 two ends are fixed with circular front yoke plate 12 and rear yoke plate 5, between front yoke plate 12 and rear yoke plate 5, be fixed with 6 coil windings 16, coil windings 16 is comprised of coil and iron core, by stay-bolt 4 through the connection that fixes of the hole in the middle of iron core, and, at stay-bolt 4 and 12 of front yoke plates, be provided with packing ring 13, and adopt 3 pairs of tensions of hex nut solid at rear yoke plate 5 places.In addition, between coil windings 16 and rear yoke plate 5, be provided with insulating pad 6.
What the iron core of described coil windings 16 adopted is segmental core 2, and segmental core (2) adopts DT4 tube material compressing.Described coil windings 16 adopt resistance wires 9 substitute copper cash as coil winding in segmental core 2.The coil of coil windings 16 is wound in segmental core 2 by specification requirement, 6 coil windings 16 are provided with the connection that fixes in inside of 12 terminals, and starter is provided with 6 binding posts 15 for connecting motor terminal, 6 binding posts 15 are distributed on front yoke plate 12,6 of motor rotors are lifted one's head line and binding post 15 and are used as in parallelly, between binding post 15 and front yoke plate 12, are also provided with insulated ring 14.6 binding posts and 6 coil windings, make star or Angle connection, as shown in Figure 5, Figure 6 in inside according to motor-driven loading condition.
See Fig. 3, Fig. 4, coil windings 16 arranges special heatproof asbestos board 7 with segmental core 2 by the surface in segmental core 2 and makes layer insulation, also direct winfing is in segmental core by specification requirement selection for the diameter of resistance wire 9, and the number of plies of coiling is determined by specification requirement.In coil windings 16, between every one deck resistance wire 9, be also provided with layer insulation plate 8 in addition, in the outside of the outer resistance wire 9 of coil windings 16, be also provided with outer layer insulation plate 10.Layer insulation plate 8 and outer layer insulation plate 10 adopts is the insulation board of the material identical with heatproof asbestos board 7.
Certainly, be more than concrete exemplary applications of the present invention, the present invention also has other execution mode, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on protection range of the presently claimed invention.
Claims (6)
1. a wound rotor motor is felt starter reduction leakage field method frequently, it is characterized in that: the circular iron core that the compressing segmental core (2) of DT4 tube material that described method employing phosphorus content is extremely low replaces the coil windings (16) of the frequency sense starter of prior art to adopt, dwindle the angle α between adjacent winding, reduce leakage field area, thereby reduce dispersion loss.
2. a wound rotor motor is felt starter frequently, comprise and the direct-connected axle sleeve of motor rotary shaft (1), axle sleeve (1) two ends are fixed with circular front yoke plate (12) and rear yoke plate (5), before, rear yoke plate (12, 5) between, be fixed with 6 coil windings (16), coil windings (16) is comprised of coil and iron core, by stay-bolt (4) through the connection that fixes of the hole in the middle of iron core, it is characterized in that: what the iron core of described coil windings (16) adopted is the compressing segmental core of DT4 tube material (2), the coil of coil windings (16) is wound in segmental core (2) by specification requirement, and use without the colligation of latitude band (11) parcel, 6 coil windings (16) are provided with the connection that fixes in inside of 12 terminals, and starter is provided with 6 binding posts (15) for connecting motor terminal.
3. wound rotor motor according to claim 2 is felt starter frequently, it is characterized in that: described coil windings (16) adopt resistance wire (9) substitute copper cash as coil winding in segmental core (2).
4. wound rotor motor according to claim 3 is felt starter frequently, it is characterized in that: described coil windings (16) is made layer insulation with heatproof asbestos board.
5. wound rotor motor according to claim 2 is felt starter frequently, it is characterized in that: described 6 coil windings (16) are provided with and when 12 terminals connect in inside, adopt star connection.
6. wound rotor motor according to claim 2 is felt starter frequently, it is characterized in that: described 6 coil windings (16) are provided with and when 12 terminals connect in inside, adopt dihedral connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210307466.7A CN103633887A (en) | 2012-08-27 | 2012-08-27 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210307466.7A CN103633887A (en) | 2012-08-27 | 2012-08-27 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
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| CN103633887A true CN103633887A (en) | 2014-03-12 |
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| CN201210307466.7A Pending CN103633887A (en) | 2012-08-27 | 2012-08-27 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113569U (en) * | 1991-04-15 | 1992-08-19 | 肖高林 | Winding type ac motor centrifugal switch frequency-sensitive starter |
| CN2342515Y (en) * | 1998-07-07 | 1999-10-06 | 乐清市曙光熔断器厂 | Ringless brushless startor for winding rotor motor |
| CN2618358Y (en) * | 2003-05-19 | 2004-05-26 | 黑龙江永磁机电设备制造有限公司 | High-efficient rare earth permanent magnetic synchronous motor |
| CN201839255U (en) * | 2010-05-04 | 2011-05-18 | 湖南科太电气有限公司 | Current-limiting moment-increasing controller of winding type asynchronous motor |
| CN202737793U (en) * | 2012-08-27 | 2013-02-13 | 龙浪 | Motor frequency sensitive starter |
-
2012
- 2012-08-27 CN CN201210307466.7A patent/CN103633887A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113569U (en) * | 1991-04-15 | 1992-08-19 | 肖高林 | Winding type ac motor centrifugal switch frequency-sensitive starter |
| CN2342515Y (en) * | 1998-07-07 | 1999-10-06 | 乐清市曙光熔断器厂 | Ringless brushless startor for winding rotor motor |
| CN2618358Y (en) * | 2003-05-19 | 2004-05-26 | 黑龙江永磁机电设备制造有限公司 | High-efficient rare earth permanent magnetic synchronous motor |
| CN201839255U (en) * | 2010-05-04 | 2011-05-18 | 湖南科太电气有限公司 | Current-limiting moment-increasing controller of winding type asynchronous motor |
| CN202737793U (en) * | 2012-08-27 | 2013-02-13 | 龙浪 | Motor frequency sensitive starter |
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Application publication date: 20140312 |
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